muzzle
noun
[ ˈmʌz(ə)l ]
• the projecting part of the face, including the nose and mouth, of an animal such as a dog or horse.
• "she patted the horse's velvety muzzle"
• the open end of the barrel of a firearm.
• "Devlin jammed the muzzle of the gun into the man's neck"
muzzle
verb
• put a muzzle on (an animal).
• "the dog should have been muzzled"
Origin:
late Middle English: from Old French musel, diminutive of medieval Latin musum, of unknown ultimate origin.
